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If 3 cos^(2)A + 7 sin^(2)A = 3, 0^(@) l...

If ` 3 cos^(2)A + 7 sin^(2)A = 3, 0^(@) le A le 90^(@)`. Then the value of A is :

A

`90^(@)`

B

`45^(@)`

C

`0^(@)`

D

`30^@`

Text Solution

Verified by Experts

The correct Answer is:
C
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